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Cave Entrances (Artificial)
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Managed By: Icon Here Artificial Caves
Caves that were built with manpower.
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Image for Welton Tunnelview gallery

SESE134.9 km

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Cave Entrances (Artificial)Welton Tunnel

in Cave Entrances (Artificial)

An old train tunnel that is no longer in use and becoming dilapidated.

posted by: Groundspeak Premium Member vivaronaldo

location: Maryland

date approved: 1/30/2010

last visited: never

Image for Mill Run Tunnelview gallery

NN135.3 km

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Cave Entrances (Artificial)Mill Run Tunnel

in Cave Entrances (Artificial)

Egress for Mill Run from its subterranean path on east end of town.

posted by: Groundspeak Premium Member Captain Chaoss

location: Pennsylvania

date approved: 10/3/2006

last visited: 6/30/2014

Premium Member Downloads: download.GPX Lite File       download.LOC File       download .KML File (Google Earth)